Home / 433,567.40-649,962.30-386,328.20

Finding the Fourth Proportional to 433,567.40, 649,962.30 and 386,328.20

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Solution

The fourth proportional to 433,567.40, 649,962.30 and 386,328.20 is: 579,145.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,567.40 : 649,962.30 = 386,328.20 : x
  2. Step 2: Convert to fraction form
    433,567.40/649,962.30 = 386,328.20/x
  3. Step 3: Cross multiply
    433,567.40x = 649,962.30 × 386,328.20
  4. Step 4: Simplify right side
    433,567.40x = 251,098,765,426.86
  5. Step 5: Solve for x
    x = 251,098,765,426.86/433,567.40
  6. Step 6: Final answer
    x = 579,145.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.